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<title>Polygon Drawing Tool</title>
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          <h1 class="mb-0 p-1 ">GoJS</h1>
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<script src="../samples/assets/require.js"></script>

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<script id="code">
  function init() {
    require(["PolygonDrawingScript"], function(app) {
      app.init();
      document.getElementById("select").onclick = app.select;
      document.getElementById("drawPolygon").onclick = app.drawPolygon;
      document.getElementById("drawPolyline").onclick = app.drawPolyline;
      document.getElementById("finishDrawing").onclick = app.finishDrawing;
      document.getElementById("cancelDrawing").onclick = app.cancelDrawing;
      document.getElementById("undo").onclick = app.undo;
      document.getElementById("allowResizing").onclick = app.allowResizing;
      document.getElementById("allowReshaping").onclick = app.allowReshaping;
      document.getElementById("allowRotating").onclick = app.allowRotating;
      document.getElementById("save").onclick = app.save;
      document.getElementById("load").onclick = app.load;
    });
  }
  window.addEventListener('DOMContentLoaded', init);
</script>

  <div id="sample">
    <div id="myDiagramDiv" style="border: solid 1px black; width: 100%; height: 350px"></div>
    <div id="buttons">
      <button type="button" id="select">Select</button>
      <button type="button" id="drawPolygon">Draw Polygon</button>
      <button type="button" id="drawPolyline">Draw Polyline</button>
      <button type="button" id="finishDrawing">Finish Drawing</button>
      <button type="button" id="cancelDrawing">Cancel Drawing</button>
      <button type="button" id="undo">Undo Last Point</button>
      <br/>
      <label><input type="checkbox" id = "allowResizing" checked="checked" />Allow Resizing</label>
      <label><input type="checkbox" id = "allowReshaping" checked="checked" />Allow Reshaping</label>
      <label><input type="checkbox" id = "allowRotating" checked="checked" />Allow Rotating</label>
      <p>
        This sample demonstrates the PolygonDrawingTool, a custom <a>Tool</a> added to the Diagram's mouseDownTools. It is
        defined in its own file, as <a href="PolygonDrawingTool.ts">PolygonDrawingTool.ts</a>. It also demonstrates the GeometryReshapingTool,
        another custom tool, defined in <a href="GeometryReshapingTool.ts">GeometryReshapingTool.ts</a>.
      </p>
      <p>
        These extensions serve as examples of features that can be added to GoJS by writing new classes. With the PolygonDrawingTool,
        a new mode is supported that allows the user to draw custom shapes. With the GeometryReshapingTool, users can change
        the geometry (i.e. the "shape") of a <a>Shape</a>s in a selected <a>Node</a>.
      </p>
      <p>
        Click a "Draw" button and then click in the diagram to place a new point in a polygon or polyline shape. Right-click,
        double-click, or Enter to finish. Press <b>Escape</b> to cancel, or <b>Z</b> to remove the last point. Click the
        "Select" button to switch back to the normal selection behavior, so that you can select, resize, and rotate the shapes.
        The checkboxes control whether you can resize, reshape, and/or rotate selected shapes.
      </p>
    </div>
    <div>
      <button id="save">Save</button>
      <button id="load">Load</button>
    </div>
    <textarea id="mySavedDiagram" style="width:100%;height:300px">
{ "position": "0 0",
  "model": { "class": "go.GraphLinksModel",
  "nodeDataArray": [ {"loc":"183 148", "category": "PolygonDrawing", "geo":"F M0 145 L75 2 L131 87 L195 0 L249 143z", "key":-1} ],
  "linkDataArray": [  ]
} }
    </textarea>
  </div>
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